Sharing connection with comp and ip camera?

Can you answer Brian B’s question about Surveillance?:

I currently have a ip camera in my garage for surveillance hooked to my router with rj45, I want to put a comp out there now and run the network to it as well. will i just be able to use a switch and run the wire from the router to the switch and split it to the cam and comp? or will I need another rj45 all the way from the router to both the cam and the comp. I really dont want to have to run a seperate line its almost a 200ft run

Ip Camera Surveillance Software